FoxO3a and nilotinib-induced erythroid differentiation of CML-BC cells.
Journal: 2013/November - Leukemia Research
ISSN: 1873-5835
Abstract:
We explored the potential involvement of FoxO3a activation in erythroid and granulocytic differentiation for Ph(+) cells of chronic myeloid leukemia blast crisis (CML BC). We demonstrate that FoxO3a activation in CML blast crisis (BC) cells by overexpressing FoxO3a leads to the maturation of CML BC cells. Hemoglobin production significantly increased upon FoxO3a activation in CML BC cells. FoxO3a activation upregulated erythroid surface protein (glycophorin A, GPA), but did not significantly modulate granulocytic markers (CD11b). Additionally, FoxO3a activation reduced the mRNA and protein expression of Tal1. Similar results were observed in cells that were given nilotinib. Our results indicate that FoxO3a activation may promote erythroid differentiation of BC cells via down-regulating Tal1 expression.
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